Go to Ashran and join the zerg, get the treasures, and kill mobs for coins. You can get a full set of this season's PVP gear in a few days of casual play.
Unfortunately, I don't think I will be able to cap out a level 100 character before this event ends. But you're right, this would be a good time to do it.
Myself i tend to only do world pvp which at ilvl 653 is frigging silly, have a hard time killing a lvl 95 love how blizzard scale gear, from my 650ish to 710 the difference is insane, my dmg on him is next to zero while i get hit for up to 160k, guess Ashran is one way to gear even though everybody seem to hate it.
Comments
It's a great opportunity to get 700 ilevel armor and weapons (in PvP it elevates to 730). I geared 3 characters since Wednesday full with 700 items.
After the bonus honor period, pray that your faction has the upper hand in its respective battle group and start farming them BG's and Ashran.